How can I remove natural gaps on a 3D model with Blender before printing?
You could select all objects in edit mode, press space to search, and type in &quot;Fill Holes&quot;. It depends on the model how clean the fill will be, but it might be printable then. The best way would be to go into edit mode and select inner and outer edge ring of each tooth with &quot;alt clicking&quot; and use &quot;bridge edge loops&quot; (when searching with space bar).